When Windows Firewall is enabled with default settings, you can’t use the ping command from another device to see if your PC is alive. Here’s how to change that.
The ping command works by sending special packets known as Internet Control Message Protocol (ICMP) Echo Requests to a target device, and then waiting for that device to send back an ICMP Echo Reply packet. This not only lets you test whether a network-connected device is active, but it also measures the response time and displays that for you, as well. By default, Windows Firewall with Advanced Security blocks ICMP Echo Requests from the network. Sure, you could take the drastic step of disabling the firewall for testing purposes, but a simpler solution is just to create an exception that allows ICMP requests through the firewall. We’re going to show you how to do that both from the Command Prompt and the Windows Firewall with Advanced Security interface. (Note that, if you have an antivirus with a firewall or another type of third-party firewall program installed, you’ll need to open ports in that firewall instead of the built-in Windows Firewall.) Continue reading